Pigeonite
Alvaro M, Nestola F, Ballaran T B, Camara F, Domeneghetti M C, Tazzoli V
American Mineralogist 95 (2010) 300-311
High-pressure phase transition of a natural pigeonite
Locality: Parana, Brazil
Note: P = 6.409 GPa
_database_code_amcsd 0005011
9.434 8.745 5.014 90 103.44 90 C2/c
atom     x     y     z  occ  Uiso
FeA      0 .9072   .25 .253 .0108
MgA      0 .9072   .25 .747 .0108
FeB      0 .2792   .25 .755 .0146
MgB      0 .2792   .25 .124 .0146
CaB      0 .2792   .25 .121 .0146
Si   .2957 .0912 .2207  .99 .0084
Al   .2957 .0912 .2207  .01 .0084
O1   .1209 .0891  .141       .009
O2   .3738 .2408  .359       .012
O3   .3527 .0509  .939       .015